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olga2289 [7]
3 years ago
12

If 6.49 mol of ethane (C2H6) undergo combustion according to the unbalanced equation

Chemistry
1 answer:
MArishka [77]3 years ago
3 0

Answer:

22.715 moles of oxygen are used

Explanation:

Given data:

Number of moles of ethane = 6.49 mol

Number of moles of O₂ required = ?

Solution:

Chemical equation:

2C₂H₆ + 7O₂       →     4CO₂ + 6H₂O

Now we will compare the moles of oxygen with ethane.

                    C₂H₆           :           O₂  

                       2              :             7

                     6.49           :           7/2×6.49 = 22.715 mol

Thus, 22.715 moles of oxygen are used.

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